JobRig: Triangle Calculator

Right angle, rise & run solver

Only for iPhone

Free

iPhone

Type what you know: a side, an angle, a pitch. JobRig solves and draws the triangle live. Metric or imperial, your call. No ads. JobRig is a right triangle calculator built for the trades: carpenters, framers, roofers, and every crew that works to an angle. It fits the job instead of making the job fit it: enter sides, angles, roof pitch or slope in any order, and JobRig solves and draws the triangle live as you type. No ads. WHAT IT DOES Enter what you know: two sides, a side and an angle, a run and a pitch, in any order, straight off the tape. No fixed boxes, no "enter side A first." JobRig solves the moment the numbers are enough and redraws the triangle as you type, so you can find a missing side, the hypotenuse, or an angle from whatever you have. When a layout has two valid answers (the ambiguous SSA case), it shows both and a swipe compares them. Basic mode keeps it to the everyday right angle; Advanced mode opens the full triangle: a trig solver when you need one. FOR THE JOBSITE • Square-ups and diagonal 3-4-5 checks: corners dead-on 90°, walls and floors square, on any scale. • Roof pitch calculator: rise and run in, pitch out, in degrees, a slope percentage, or 6:12. One tap converts degrees to pitch and back, on a rise:12 or rise:10 base. • Rafter length from rise and run: clean right-triangle rafter math. • Stairs and ramps from rise over run: stringer length and angle, ramp slope in degrees, percent, or a ratio like 1:12. Not in the trades? The same math covers DIY and home projects: slope from rise over run in degrees or a slope percentage, a stair stringer's length and angle, a shed roof, a true square corner. MEASURE LIKE YOUR TAPE • Metric and imperial, including real tape fractions like 5' 6 1/2". • Pick your fineness, from 1/4" down to 1/64", or decimal feet and decimal inches. • Pythagorean theorem in feet and inches: two sides in, the diagonal out, the way your tape reads it. • Hypotenuse calculator, tape style: the diagonal in tape fractions or decimals, ready to mark. • US and European number formats. MADE FOR THE FIELD • Big, glove-friendly keypad, one-handed by design, with a left-handed mirror option. • Keep-awake option so the screen stays on while you work. • Dark, light, or follow-your-phone themes. • Haptic and key-click feedback, three levels each, all optional. • Area and perimeter readouts, tap to cycle their units. • Undo after reset. PRIVATE BY DESIGN • No ads. • Works fully offline: the math never needs a signal. • No history: your numbers never leave your device. More trade tools are on the way, each added only when it can be done without complicating the tool in your hand. This first release ships the right-triangle solver, done properly.

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The developer, Raz Sharabi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

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Accessibility

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Information

Seller
  • Raz Sharabi
Size
  • 33.5 MB
Category
  • Utilities
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 Raz Sharabi
  • Developer Website
  • Privacy Policy